Locking - REMEHA Gas 210 Ace 80 Installation And User Manual

Code Display text
H.03.00 Parameter Error
H.03.01 CU to GVC data error
H.03.02 Flame loss detected
H.03.05 Internal blocking
10.1.4

Locking

Tab.48 Locking codes
Code Display text
E.00.00 TFlow Open
E.00.01 TFlow Closed
E.00.04 TReturn Open
E.00.05 TReturn Closed
7837114 - v.01 - 10012023
Description
Safety parameters level 2, 3, 4 are
not correct or missing
No valid data from CU to GVC re­
ceived
Measured ionisation current is below
limit
Gas Valve Control internal blocking
occured
Description
Flow temperature sensor is either
removed or measures a temperature
below range
Flow temperature sensor is either
shorted or measures a temperature
above range
Return temperature sensor is either
removed or measures a temperature
below range
Return temperature sensor is either
shorted or measures a temperature
above range
Solution
Parameter error: security kernel
Restart the boiler
Replace the CU-GH
Communication error with the CU-GH:
Restart the boiler
No flame during operation:
No ionisation current:
Vent the gas supply to remove air
Check that the gas valve is fully opened
Check the gas supply pressure
Check the operation and setting of the gas
valve unit
Check that the air supply inlet and flue gas
outlet are not blocked
Check that there is no recirculation of flue
gases
Security kernel error:
Restart the boiler
Replace the CU-GH
Solution
Zone flow temperature sensor open:
Sensor is not present.
Wrong Zone Function setting: check the setting
of parameter CP02x.
Bad connection: check the wiring and connec­
tors.
Incorrectly fitted sensor: make sure that the
sensor has been correctly fitted.
Faulty sensor: replace the sensor.
Zone flow temperature sensor short-circuited:
Sensor is not present.
Bad connection: check the wiring and connec­
tors.
Incorrectly fitted sensor: check that the sensor
has been correctly fitted.
Faulty sensor: replace the sensor.
Return temperature sensor open:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
Return temperature sensor short-circuited:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
10 Troubleshooting
61